namespace _2734 {
    function smallestString(s: string): string {
        let map = '';
        for (let c = 'a'.codePointAt(0)!; c <= 'z'.codePointAt(0)!; c++) {
            map += String.fromCharCode(c);
        }
        console.log(map);
        return map;
    }

    function getPrevChar(c: string) {
        let code: number = c.codePointAt(0)!;
        return String.fromCodePoint(code - 1);
    }

    smallestString('');
}
